The leader of the enemy forces is enemy royalty and all of their people are fanatically loyal to them. See also: Queen Beryl, etc.
It would be nice to see a demonic invasion which is -not- sanctioned by the homeworld government. Or at least not all of it. Perhaps it's one particular nation attempting to invade other dimensions A'La secreet cold-war project to get more magical energy to take home to fight their other front or perhaps it's a rogue black op by their government...maybe it is sanctioned by the president. But not their equivalent of congress.
It would be nice to see a demonic invasion which is -not- sanctioned by the homeworld government. Or at least not all of it. Perhaps it's one particular nation attempting to invade other dimensions A'La secreet cold-war project to get more magical energy to take home to fight their other front or perhaps it's a rogue black op by their government...maybe it is sanctioned by the president. But not their equivalent of congress.